Jointer-gage.



. No. 030,003. PATBNTBD SEPT. 11, 1900.

J. W. LINDSAY.

1011111111 011GB. APPLIOATION FILEDPKZO. 1906.

2 SHEETS-SHEET l.

TH: rscnuus Elinks ca.. wAsulNnfaN. urc- PATENTED SEPT. 11, i906;

J. W. LINDSAY. JOINTER GAGE.

APPLIUATION FILED v5.20, 1906.

2 SHEETS-SHEET 2.

INVEN'TQR nis-Noma: Ftrxns ca., wAsHrNcm/v, n.1

JAMES w. LINDSAY, or coHoEs, INaw YORK.

dolmen-GAGE.

Specification of Letters Patent.

Patented Sept. 11, 1906.

Application filed April. 20, 1906. Serial No. 312,812.

ZaA all whom t may concern,.-

Be it known that I, JAMEs W. LINDSAY, 'a citizen of the United States, residing at Cohoes, county of Albany, and State of New York, have invented certain new and useful Improvements in Jointer-Gages, of which the following is a specification. y

The invention relates to such improvements; and it consists of the novel construction and combination of parts hereinafter de-` scribed and subseq uently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several fi ures therein.

Figure 1l o the drawings is a view in isometrical perspective of a jointing-machine or planer provided with my improved gage. Fig. 2 is a side elevation, partly in section, of the gage detached. Fig. 3 is atop plan view of the same. Fig. 4 is a front elevation of the same.

My invention relates to attachments for jointing-inachines or planers for finishing and truing the surfaces of boards for j oiners use.

The principal object of the invention is to facilitate the work of the operator and to adapt the machine for a wider range of use and for greater accuracy of work.

Referrinor to the drawin s, wherein the invention is Show in its preferred form, 1 represents an ordinary wood-planing machine, commonly known as a jointing-machine, having the horizontal beds 2 and 3 on opposite sides of the rotary cutter 4, adapted to plane or smooth off the under side of a board which is moved along from the bed 3 to the bed 2 by the operator. The beds 2 and 3 are adapted to be raised and lowered in the usual manner, the raising and lowering mechanism not being shown in the drawings.

Attached to the side of the machine about opposite the end of the rotary cutter is a bracket 5,-secured by means of bolts 6, inserted through apertures 7 in said bracket. Rotatively mounted upon said bracket is a socket-piece 8, containing a slideway for the spindle 9, adjustable to different heights in said slideway by means of the screw 10, upon the upper end of which the lower end of said spindle rests. The spindle is secured in its slideway-socket against both rotative movement therein and withdrawal longitudinally therefrom by means of a set-'screw 11, 1n-

sertedthrough the wall of the socket into engagement with a recessed portion 12 of the spindle.

The socket-piece 8 is mounted upon the bracket by means `of ay pivotal connection, the aXis of which extends parallel with the side of the planer, said connection bein formed by a cylindrical boss on one of sai members adapted to iit into a similarlyformed recess in the other, the parts being held together by means of a set-screw 13, as shown in Fig. 2.

Mounted upon the upper end of the spindle 9 is a head 14, to which is adjustably secured the gage-arm 15, whichf overhangs the bed portion of the planing-machine directly above the rotary cutter thereof. arm is mounted upon the head 14 of the spindle by means of a pair of bolts 16, passing through slotted apertures 17 in the arm into'l the head 14 of the spindle, said adjustment permitting the gage-arm to be located directly above the rotary cutter in all cases, it being impossible to attach the bracket 5 to some machines in such a position as to pro erly locate the arm above the cutter in t e absence of provision for adjustment of the Gage-arm. The gage-arm is provided with a friction-roller 19, extending longitudinally thereof, which roller in use is in substantially the same vertical plane with the rotary cutter.

My improved gage is adapted for various uses in connection with the planing-machine. When used to reduce a board to-uniform thickness, the board is first run through the planer'to smooth one of its sides, 'after which the board is reversed to bring its opposite side in engagement with the rotary cutter and is again run throu h the machine with the ga e adjusted att e proper height to leave t e board of the desired thickness. As the board is passing through the machine it is held by the operator up against the frictionroller of the age, so that the superfluous thickness of t e board is removed from its under side by engagement with the cutter. For the purpose just described the gage-arm is maintained in a horizontal position, the spindle 9 andthe socket therefor being in vertical position, andin adapting the machine to work of different thicknesses the The gage- IOO height of the gade-arm can be vvaried from time to time as dbsired by loosening the setscrew 11, accomplishin the desired adjustment by means of the acIjusting-screw 10, and

again tightenin the set-screw 11.

Should it be esired to reduce the board to tapered or Wedge-shape form in cross-section, one side of the board is smoothed or planed, as above described, after which the gage-arm isadjusted at the desired angle by rotation of the socket-piece 8 upon the bracket, which rotation is permitted by loosening the setscrew 13, after which the parts are locked in adjusted position by ragain ti htening said set-screw. .The armis adjuste atthe desired height in the manner above described and the inverted board is `again passed through the machine,'the operator.` holding its previously-` planed surface against the arm of the gage. The superfluous thickness of the board will thus be removed from its under side, which will occupy the horizontal plane of the bed of the machine, while the upper side will occupy an inclined plane corresponding with the inclination of the gage.

I In Fig. 4 the osition of the gage for the use last describe is indicated by dotted lines, the dotted line 18 indicating the plane of the bed of the machine, or the cutting-plane of the knives. The gage-arm being supported in a position to extend across the bed of the machine ,directly over the rotary cutter also serves as a guard for the cutter, preventing accidental contact therewith of external objects.

In inserting a board into the machine adjusted to materially reduce its thickness, the board is held in a tipped-up position with its upper forward corner beneath the gage and is then gradually lowered, forcing its lower forward corner against the cutter until the sur-v plus material is removed from the under front side of the board, after which it is only necessary to guide the board by hand, pressing it upwardly with slight force against the gage-roller. If desired, the bed 3 can be lowered to permit the insertion of the board and then gradually raised to proper position.

What I claim as new, and desire to secure by Letters Patent, is-

In a jointer-gage, the combination with a socket-piece provided with a spindle-slideway; a spindle adjustable in said slideway; a

screw for adjusting said spindle; and means 

